Outer Space Quiz

Try out this Outer Space quiz to test your knowledge. Outer Space trivia brings together facts about the solar system, distant galaxies, famous missions, and the science that helps explain the cosmos.

Start Quiz Browse Full Trivia

0 pts

0 correct

0 incorrect

Start Quiz

15 questions

~3 min to finish

Easy to hard difficulty

540 pts max score

Question 1 · Hard · 40 pts
Who showed in 1925 that stars are composed mainly of hydrogen and helium?
Question 2 · Hard · 40 pts
Which astronomer discovered the period-luminosity relation for Cepheid variable stars?
Question 3 · Hard · 40 pts
Who provided evidence that the Andromeda Nebula is a separate galaxy?
Question 4 · Hard · 40 pts
Whose galaxy rotation research gave key evidence for dark matter?
Question 5 · Hard · 40 pts
Who co-discovered the first radio pulsars in 1967?
Question 6 · Hard · 40 pts
Which scientist co-wrote the 1972 Pioneer plaque message sent into space?
Question 7 · Hard · 40 pts
Who predicted the black hole emission now called Hawking radiation?
Question 8 · Hard · 40 pts
During Apollo 13's mission crisis, who served as NASA flight director?
Question 9 · Hard · 40 pts
In what U.S. territory was the Arecibo Observatory located?
Question 10 · Hard · 40 pts
What was the first space station launched into orbit in 1971?
Question 11 · Hard · 40 pts
Which spacecraft was the first reusable crewed orbital spacecraft to fly?
Question 12 · Hard · 40 pts
Who became the first American woman to perform a spacewalk in 1984?
Question 13 · Hard · 40 pts
What is the name of China's modular space station?
Question 14 · Easy · 10 pts
Which planet sits closest to the Sun?
Question 15 · Easy · 10 pts
What is the third planet from the Sun?

Who showed in 1925 that stars are composed mainly of hydrogen and helium?

Which astronomer discovered the period-luminosity relation for Cepheid variable stars?

Who provided evidence that the Andromeda Nebula is a separate galaxy?

Whose galaxy rotation research gave key evidence for dark matter?

Who co-discovered the first radio pulsars in 1967?

Which scientist co-wrote the 1972 Pioneer plaque message sent into space?

Who predicted the black hole emission now called Hawking radiation?

During Apollo 13's mission crisis, who served as NASA flight director?

In what U.S. territory was the Arecibo Observatory located?

What was the first space station launched into orbit in 1971?

Which spacecraft was the first reusable crewed orbital spacecraft to fly?

Who became the first American woman to perform a spacewalk in 1984?

What is the name of China's modular space station?

Which planet sits closest to the Sun?

What is the third planet from the Sun?